<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>homework1</title>
</head>
<body style="text-align: center;">
	<h2>函数题：求解一元二次方程</h2>
	<form action="homework1.php" method="post">
	a：<input type="text" name="count1"><br>
	b：<input type="text" name="count2"><br>
	c：<input type="text" name="count3"><br>
	<h2>流程控制3：找零问题</h2>
	应收金额：<input type="text" name="received"><br>
	实收金额：<input type="text" name="collected"><br>
	<input type="submit" value="计算">
	</form>
</body>
</html>